The start logo audio is purposelly distorted. So that's normal ;)
Anyway thanks for bringing the problem to our attention. Could you please write about the issue to info@fantasticostudio.it so the guys in charge can look it up?
We are actually trying to fix the bug. The problem is a video codec that Unity does not support in Window 7. First we need to recover a copy of Windows 7!! :P So we can do some tests and figure out how to solve. We'll let you know.